\begin{tikzpicture}

\node (v2)  at (-3.3,-1.9) {};
\node (v1) at (1.2,-2.6) {};
\draw  (v1) [very thick] edge (v2);
\node (v9) at (-3.2,-1) {};
\node (v10) at (-0.6,-2.1) {};
\node (v7) at (-3.3,0.2) {};
\node (v8) at (-1.5,-1.5) {};
\node (v6) at (-3.3,1.3) {};
\node (v5) at (-2.3,-0.6) {};
\node (v4) at (-2.8,2.1) {};
\node (v3) at (-2.6,0.3) {};
\draw  (v3) [very thick] edge (v4);
\draw  (v5) [very thick] edge (v6);
\draw  (v7) [very thick] edge (v8);
\draw  (v9) [very thick] edge (v10);
\node (v11) at (-2.2,-3) {};
\node (v14) at (1.1,-2.8) {};
\node (v13) at (-0.1,-2.8) {};
\node (v12) at (-1,-2.9) {};
\draw  (v3) [dashed] edge (v11);
\draw  (v5)  [dashed] edge (v12);
\draw  (v13) [dashed]  edge (v8);
\draw  (v10)  [dashed] edge (v14);
\end{tikzpicture}